1. Health Services Research and Development, Veterans Affairs Puget Sound Health Care System, Seattle, Washington
2. Division of Pulmonary, Critical Care, and Sleep Medicine, University of Washington, Seattle, Washington
3. Health Services Research & Development, Veterans Affairs Eastern Colorado Health System, Aurora, Colorado
4. The Breathe Chicago Center, Division of Pulmonary, Critical Care, Sleep, and Allergy, University of Illinois at Chicago, Chicago, Illinois
5. Department of Medicine, University of California, San Francisco, California
6. Center for Healthcare Organization and Implementation Research, Veterans Affairs Boston Healthcare System, Boston, Massachusetts; and
7. The Pulmonary Center, Boston University School of Medicine, Boston, Massachusetts